[Elecraft] KPA500 problem

[Mike Crownover]

Did that..."power lost without controlled shutdown"

Thanks,

Mike AD5A

-----Original Message-----
From: Dick Dievendorff [mailto:dick at elecraft.com] 
Sent: Tuesday, February 16, 2016 9:53 AM
To: 'Mike Crownover' <ad5a at gvtc.com>; 'AJ8MH Radio'
<aj8mh-radio at charter.net>
Subject: RE: [Elecraft] KPA500 problem

I would recommend connecting the KPA Utility and display the fault table.

73 de Dick, K6KR


-----Original Message-----
From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Mike
Crownover
Sent: Tuesday, February 16, 2016 07:39
To: 'AJ8MH Radio' <aj8mh-radio at charter.net>
Cc: elecraft at mailman.qth.net
Subject: Re: [Elecraft] KPA500 problem

Joe,

I already reset all menu items to default. I've also done the Key Out to PA
Key configuration. I've also done the 10 watt exercise, I am getting the
asterisk without the underscore and the ~200 watts out. But only when I just
tap the paddle. If I string dits together, even at low power the amp shuts
off.

The K3 isn't shutting down.

I sort of in the camp that it's something internal, however, I've never
built one of these. I did get the assembly manual and have looked at some
obvious ground connections and all seem in order.

Thanks for your thoughts.

Mike AD5A

-----Original Message-----
From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of AJ8MH
Radio
Sent: Tuesday, February 16, 2016 9:26 AM
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] KPA500 problem

No fault codes?

Double check amp's menu items and set all to default before test.

Remove all cables. Connect dummy load directly to amp. Connect RF in from
K3. Connect "Key Out" to "PA Key."

Manually select same band on rig and amp. Set K3 for 10 watts drive. 
Select "OPER." Now, try and key amp. You should see asterisk in amp's
display window and around 200 watts out. An asterisk with underscore
indicates amp is being inhibited.

If amp still fails, I would check all connections internal to the amp. 
Guess you could also see if the K3 is shutting down...

73,
Joe ( AJ8MH-Radio )

On 2/16/2016 9:33 AM, Mike Crownover wrote:

73,
Joe ( AJ8MH-Radio )

On 2/16/2016 9:33 AM, Mike Crownover wrote:

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